Display screen or portion thereof with icon



The FIGURE is a front view of a display screen or portion thereof with icon, showing our new design.

The outermost perimeter illustrated by a pair of dashed broken lines shows a display screen or portion thereof and forms no part of the claimed design.

The dot-dash broken lines in the figure illustrate a boundary of the claimed design, and form no part of the claimed design. 

CLAIM The ornamental design for a display screen or portion thereof with icon, as shown and described. 